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CMC jackets for metallic pipes : a novel approach to prevent the creep deformation of thermo-mechanically loaded metals

Title data

Spatz, Carolin ; Langhof, Nico ; Schmidt, Jens ; Krenkel, Walter:
CMC jackets for metallic pipes : a novel approach to prevent the creep deformation of thermo-mechanically loaded metals.
In: Journal of the European Ceramic Society. Vol. 38 (3 February 2018) Issue 8 . - pp. 2954-2960.
ISSN 0955-2219
DOI: https://doi.org/10.1016/j.jeurceramsoc.2018.01.018

Abstract in another language

Steel materials suffer extensive creep by the application at temperatures of about 700 °C and pressures about 350 bar in a power plant environment. The presented concept overwraps a steel pipe with a ceramic matrix composite (CMC) jacket in order to support the steel pipe and provide high temperature strength. Finite Element simulations show the influence of the wall thickness of CMC jacket and the coefficient of thermal expansion (CTE) on circumferential stresses within the hybrid metal ceramic pipe. Suitable fiber and matrix materials were studied, composites fabricated and mechanical properties determined. Finally, a prototype was designed in order to confirm the feasibility of the concept. The lifetime of a pure steel pipe was increased by more than four-fold by the additional CMC jacket.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: In Press, Corrected Proof
Keywords: Ceramic matrix composites; Hybrid metal ceramic pipe; Creep resistance; 700 °C steam power plant
Institutions of the University: Faculties
Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Ceramic Materials Engineering
Faculties > Faculty of Engineering Science > Chair Ceramic Materials Engineering > Chair Ceramic Materials Engineering - Univ.-Prof. Dr.-Ing. Walter Krenkel
Profile Fields > Advanced Fields > Advanced Materials
Research Institutions > Research Centres > Bayreuth Center for Material Science and Engineering - BayMAT
Profile Fields
Profile Fields > Advanced Fields
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 600 Technology, medicine, applied sciences
600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 09 Feb 2018 07:34
Last Modified: 26 Mar 2018 11:15
URI: https://eref.uni-bayreuth.de/id/eprint/42234